Yes! I had one that got huge! It jumped out of the tank twice, was tramped on in bare feet once, the other time it landed between the wall and side of tank, and its fins and tail were all dried up, and it wasn't moving, and I put it back in the tank, where it floated to the bottom, and in an hour, was rehydrated, and was swimming again! Anyway, he was biting the tails off my angelfish, and ended up in a two gallon tank by himself, with some guppy grass, and snails, and lived in there for another year! I did feed him meal worms though! I think that is why he lived almost four years! They don't normally have a long life span!